Talk:Legendary and Mythical Pokémon/@comment-28314641-20161012191901/@comment-27248965-20161024094557

Well, Manaphy Egg has an extremely slim chance of washing ashore in each wave. It doesn't depend on time, but it can take so many waves to spawn a Manaphy Egg. My personal experience is that it took me 10 days to find a Manaphy Egg in the previous Manaphy Event.

Rotom is neither Legendary nor Mythical Pokemon. Personally I reckon that Rotom may qualify for Mythical due to how rare it is, but officially it is not. Oh well.

For Jirachi, you can't find anything on Route 10. Grove of Dreams is actually accessible from Route 9 instead (Fortulose Manor as well, for Rotom). Find the secret path behind the huge normal tree, covered by vines. Proceed through and get on the pedestal. Stand in the middle and type "I wish for (anything)" in the chat. You have to substitute "(anything)" with 1 word. Also, make sure you're doing that overnight, Jirachi will not appear during daytime. Bringing a lot of Dusk Balls helps.

At last, Lake Guardians -- Uxie, Mesprit and Azelf. Dig for Fossilized Eggs in Lagoona Trenches, accessible by the UMV Submarine of Lagoona Lake Lab. The chance of Fossilized Eggs are as rare as Old Amber, so good luck. Once found, you can bring those Fossilized Eggs (stored in your party or PC rather than your bag, they are not items) to the back of Lagoona Lake Lab, where you revive fossils. However, they may also revive into Togepi instead.